Figure 2.
This image features a map of the southwestern United States, highlighting various regions in shades of grey. The map outlines state boundaries and includes a considerable portion of California, Nevada, Arizona, New Mexico, Texas, and portions of Colorado, Utah, and Oklahoma. The areas that are shaded grey are visually distinct from those left white, which may indicate a specific categorization. The map flows from the left to the right and top to bottom, providing a geographic representation that facilitates navigation by following the outlined state borders and divisions. There are no repeated structures or merged elements apparent in the layout.Included vs. excluded counties
Note(s): This figure depicts our sample counties, which come from the 16 states that adopted PA in whole or in part. The sample includes all counties in the eight mountain west states that completely switched from riparian rights to PA. In the remaining eight states, we exclude counties that had at least 15-20 inches of spring and summer rainfall based on the 1880 Statistical Atlas of the United States, depicted in Figure A1